[jira] [Created] (HIVE-11380) NPE when FileSinkOperator is not inialized

["Yongzhi Chen (JIRA)" <ji...@apache.org>]

Yongzhi Chen created HIVE-11380:
-----------------------------------

             Summary: NPE when FileSinkOperator is not inialized
                 Key: HIVE-11380
                 URL: https://issues.apache.org/jira/browse/HIVE-11380
             Project: Hive
          Issue Type: Bug
          Components: Query Processor
    Affects Versions: 0.14.0
            Reporter: Yongzhi Chen
            Assignee: Yongzhi Chen


When FileSinkOperator's initializeOp is not called (which may happen when an operator before FileSinkOperator initializeOp failed), FileSinkOperator will throw NPE at close time. The stacktrace:
{noformat}
org.apache.hadoop.hive.ql.metadata.HiveException: java.lang.NullPointerException

at org.apache.hadoop.hive.ql.exec.FileSinkOperator.createBucketFiles(FileSinkOperator.java:523)

at org.apache.hadoop.hive.ql.exec.FileSinkOperator.closeOp(FileSinkOperator.java:952)

at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:598)

at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:610)

at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:610)

at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:610)

at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:610)

at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:610)

at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:610)

at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.close(ExecMapper.java:199)

at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:61)

at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:453)

at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)

at org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:243)

at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)

at java.util.concurrent.FutureTask.run(FutureTask.java:262)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

at java.lang.Thread.run(Thread.java:745)

Caused by: java.lang.NullPointerException

at org.apache.hadoop.hive.ql.exec.FileSinkOperator.createBucketFiles(FileSinkOperator.java:519)

... 18 more
{noformat}
This Exception is misleading and often distracts users from finding real issues. 



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